According to Anthropic’s documentation, Ultraplan offers three main advantages over local planning. First, users can comment on specific sections of a plan instead of replying to the entire draft at once. Second, the planning process runs in the background in the cloud, rather than tying up the local session. Third, once the plan is complete, it can be executed either directly in the browser or back in the terminal, depending on the developer’s workflow. In the browser, users can also leave inline comments, add emoji reactions, and request revisions.

Ultraplan requires a Claude Code web account, a GitHub repository, and Claude Code version 2.1.91 or later. The feature is not available when Claude Code is used through Amazon Bedrock, Google Cloud Vertex AI, or Microsoft Foundry. Anthropic employee Thariq said on X that Ultraplan uses roughly the same number of tokens as the existing Plan mode. The feature is currently available in preview for all users who have enabled Claude Code on the web.

Ultraplan uses roughly the same number of tokens (and subscription rate limits) as plan mode.
Ultraplan uses roughly the same number of tokens (and subscription rate limits) as plan mode. Х

 Ultraplan reflects a broader shift in AI coding tools from simple code generation toward more collaborative and workflow-aware development environments.